2UNDR 2PACK 6" Swing Shift Boxer Brief - Aloha/Mahalo2UNDR The Swing Shift caresses the skin with the finest beechwood fibre in 2UNDR's signature modal fabric. The material resists shrinkage and is less likely to fade or pill as a result of friction. The smoothness of the fabric also rejects hard water deposits, allowing it to remain soft through repeated wash cycles. Ultra soft Signature Modal fabric Shrink resistant material Remains soft even after repeated washing 95% Lenzing Modal Beechwood Fiber,